Absorption of Hazardous Pollutants by a Medicinal Fern Blechnum orientale L.
Figure 2
Concentrations (means ± SD, mg·kg−1 DW, ) of heavy metals in the fronds and the roots of B. orientale sampled at the woodland nearby a smeltery (polluted site, PS) and in a natural reserve (relatively unpolluted site, UPS). For each plant part in each panel, bars with different letters indicate significant differences () between the sites.
